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ID 41160
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Title Alternative
Studies on Pericoronitis of the Lower Third Molar I. Clinico-Statistical Observation
Author
Matsui, Toshiyuki
Abstract
Clinico-Statistical findings were summarized in 252 cases of clinically diagnosed pericoronitis of the lower third molar. 1) Sex and Age Incidence: Generally speaking it could be seen a little more frequently in male, while more often in female before about 30 years of age, but a contrary tendency could be noticed with the progress of age. Eight per cent of all the cases were between the ages of 20 and 29 years. 2) Seasonal Incidence: It showed a decaease in the order of fall, spring, summer and winter. 3) Side Incidence: Almcst no difference of incidence could be seen between right and left sides. As for inclination of the eruption normal position was most frequent in acute cases, while mesial and horizontal inclincations more frequent in chronic cases. Twenty-eight per cent of all the cases showed the findings of bone resorption of the alveolar process. 4) Clinical Findings: They were almost agreed with those of previous description except lower incidence of disturbed mouth opening and fever which had been considered to be the most frequent symptoms so far. According to the clinical findings all the cases could be classified into acute and chronic ones at the ratio of 15 to 85. As a conclusion the fact that a cusp or a part of the crown had been exposed in all the cases examined may suggest that pericoronitis was due to infection of the dental follicle after eruption and had hardly connection with insufficiency of the space, direction of eruption, and difference of localiztion.
Published Date
1959-09-10
Publication Title
岡山医学会雑誌
Publication Title Alternative
Journal of Okayama Medical Association
Volume
volume71
Issue
issue9-2
Publisher
岡山医学会
Publisher Alternative
Okayama Medical Association
Start Page
6187
End Page
6196
ISSN
0030-1558
NCID
AN00032489
Content Type
Journal Article
Official Url
https://www.jstage.jst.go.jp/article/joma1947/71/9-2/71_9-2_6187/_article/-char/ja/
Related Url
http://www.okayama-u.ac.jp/user/oma/
language
日本語
Copyright Holders
岡山医学会
File Version
publisher
Refereed
True
Eprints Journal Name
joma